diff --git a/res/values/config.xml b/res/values/config.xml
index 826cd74..50bfe85 100755
--- a/res/values/config.xml
+++ b/res/values/config.xml
@@ -194,5 +194,9 @@
     <!-- Class name for the SIM unlock dialog.[DO NOT TRANSLATE] -->
     <string name="config_simUnlockUiClass" translatable="false">@null</string>
 
+    <!-- Flag indicating whether to allow visual voicemail if available on the device.[DO NOT TRANSLATE] -->
     <bool name="allow_visual_voicemail">true</bool>
+
+    <!-- Component for custom voicemail notification handling. [DO NOT TRANSLATE] -->
+    <string name="config_customVoicemailComponent">@null</string>
 </resources>